The utility model discloses an arch-shaped combined
keel flat-
insertion partition wall
system which comprises stand column keels, flat-
insertion assemblies, panels, horizontal keels, inter-
keel insertion fixing assemblies and panel supporting pieces, the backs of the panels are connected with the stand column keels in an inserted mode through the flat-insertion assemblies, the cross section of each stand column
keel is of an arch-shaped opening structure, and each flat-insertion
assembly comprises a mother piece and a son piece. The mother part is of a left-right symmetrical structure, a middle gap forms a child part insertion channel, the child part is a special-shaped L part and comprises child part parallel limbs and a child part insertion plate, a clamping protrusion is arranged at the head of the child part insertion plate, and the connecting concave position of the clamping protrusion and the child part insertion plate is limited through an end protrusion of a limiting hook. A closed stress ring is formed by flatly inserting the arch-shaped combined keel into the partition wall
system, loads are effectively dispersed, and the overall stability is improved. The symmetrical angle plates of the female part are clamped into the inner clamping holes to form bidirectional constraint, the limiting hooks are matched with the clamping protrusions to achieve three-dimensional limiting, the loosening risk of traditional single-point insertion is avoided, and long-term stable connection of the panel is guaranteed.